Learn about how to use CAShapeLayer to create an animated circular progress control.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/107403/video-tutorial-calayers-part-3-cashapelayer
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/107403/video-tutorial-calayers-part-3-cashapelayer